The realm of luxury vinyl flooring encompasses two primary variants: LVT (Luxury Vinyl Tile), designed to mimic the appearance of tiles, and LVP (Luxury Vinyl Plank), which emulates the look of wooden planks. A common query concerning these flooring types is whether an expansion gap is necessary. Despite being fully synthetic, both LVT and LVP indeed require an expansion gap, as we’ll explain further.
What is an ‘Expansion Gap’?
In the context of flooring, an ‘expansion gap’ refers to a deliberate space left around the perimeter of a room and any fixed objects like radiator pipes when installing flooring. For both LVT and LVP, a minimum expansion gap of 4mm is recommended, though gaps between 6mm and 8mm are also acceptable, subject to the specific guidelines provided by your flooring’s manufacturer. To ensure that this gap does not detract from the overall aesthetic, it can be concealed using quarter-round moulding, transition strips, or skirting boards.
The Consequences of Omitting an Expansion Gap
Luxury vinyl flooring is susceptible to slight expansions and contractions in response to changes in moisture and humidity levels. An expansion gap permits the flooring to adjust without distortion. Neglecting to incorporate this gap can lead to damage, particularly if the floor expands significantly. This often manifests as bulging or lifting, particularly at the centre of the room. This phenomenon, known as a “pinch point,” occurs when expanding flooring comes into contact with a wall or door frame, creating upward pressure on the boards. Although the flooring might return to its original state when conditions normalise, repeated cycles of expansion and contraction can eventually cause warping or bending.
Ensuring the Correct Expansion Gap
To achieve the optimal expansion gap, it’s crucial to follow the manufacturer’s detailed guidelines closely. Additionally, acclimatising the flooring before installation is highly advisable. Depending on the core material—PVC or SPC cores require at least 24 hours, while WPC cores may need up to 48 hours—the flooring should be stored in the installation room to adjust to its environment. This involves maintaining a stable temperature and humidity level and keeping the flooring in its original packaging to protect against moisture and damage.
In summary, both LVT and LVP flooring benefit significantly from the inclusion of an expansion gap. Proper acclimatisation before installation and adherence to specific manufacturer guidelines are key to ensuring the longevity and aesthetic appeal of your luxury vinyl flooring.
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FAQ
What is an Expansion Gap in Flooring?
An expansion gap in flooring is a strategically left space around the perimeter of a room and around fixed objects during installation. It’s essential for accommodating the natural expansion and contraction of the flooring material due to environmental changes.
Why Do LVT and LVP Flooring Require an Expansion Gap?
Despite their synthetic composition, LVT (Luxury Vinyl Tile) and LVP (Luxury Vinyl Plank) flooring expand and contract with changes in humidity and temperature. An expansion gap prevents the flooring from warping or lifting by allowing it room to move.
How Large Should the Expansion Gap Be?
The recommended size for an expansion gap for luxury vinyl flooring is at least 4mm. However, depending on the specific product and manufacturer’s guidelines, a gap of 6mm to 8mm may also be appropriate.
What Happens If I Don’t Leave an Expansion Gap?
Omitting the expansion gap can lead to the flooring bulging, lifting, or warping, especially in areas where the flooring may expand and come into contact with walls or fixed objects, creating pressure points.
How Can I Ensure the Correct Expansion Gap?
To ensure the correct expansion gap, it is vital to follow the manufacturer’s guidelines for your specific flooring product. Additionally, acclimatising the flooring to the room where it will be installed, by storing it there for 24 to 48 hours prior to installation, can help ensure a proper fit.